BioStacks
Best for
Ingredients (1)
St. John’s Wort
100%Dose/day
900 mg
Target
600–1200 mg
Form
Standard
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
StarchBinder
Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules
How to Take It
Best taken in the morning
Take earlier in the day with food. Check the conflicts below — it interacts seriously with serotonergic compounds.
With food
Label directs 3 servings — keep one for the morning
On the label
1 capsule 3 times daily, preferably with meals, or as directed by a physician
Do not combine with 5-HTP, SAMe or Tryptophan
Each of these raises serotonin activity on top of St. John's Wort, and together they can trigger serotonin syndrome — agitation, rapid heartbeat, raised blood pressure. Not without medical supervision.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
C$15.99≈ $11.67
Cheaper than 72% of 24 st. john's wort supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.